Reflexiones en torno a la relación de los arqueólogos y bioarqueólogos con las comunidades indígenas: el caso Hornillos (Qda. de Humahuaca, Jujuy)

Este trabajo tiene por finalidad reflexionar en torno al trabajo realizado con las comunidades indígenas a partir de la exhumación de un conjunto de restos humanos prehispánicos (PDR II-1350-1460 d.C.). El conjunto que se compone de un entierro múltiple, uno simple y dos en urna; fueron rescatados del yacimiento arqueológico de Hornillos en el marco del Proyecto "Puesta en Valor del Patrimonio Cultural de Hornillos". Considerando que los entierros humanos en su conjunto son parte de la historia y del patrimonio de los pueblos, el análisis bioarqueológico no debería circunscribirse al mero análisis de los restos óseos sino que tendría que contemplar e involucrar de alguna manera la participación de diferentes actores sociales, en este caso, las comunidades indígenas. Los restos óseos humanos han despertado siempre gran interés por parte de los diferentes actores sociales (arqueólogos, coleccionistas, comunidad en general). En este caso se pudo generar un espacio de reflexión sobre el destino de los restos óseos humanos en el que participaron aquellas personas interesadas en la temática. A partir de la consulta de las partes intervinientes se decidió que los restos óseos recuperados fueran primeramente analizados por los arqueólogos y bioarqueólogos, para luego ser enterrados nuevamente en el lugar de origen de acuerdo a las costumbres y creencias de las comunidades indígenas.Asociación de Antropología Biológica de la República Argentin

Reflexiones en torno a la relación de los arqueólogos y bioarqueólogos con las comunidades indígenas: el caso Hornillos (Qda. de Humahuaca, Jujuy)

Este trabajo tiene por finalidad reflexionar en torno al trabajo realizado con las comunidades indígenas a partir de la exhumación de un conjunto de restos humanos prehispánicos (PDR II-1350-1460 d.C.). El conjunto que se compone de un entierro múltiple, uno simple y dos en urna; fueron rescatados del yacimiento arqueológico de Hornillos en el marco del Proyecto "Puesta en Valor del Patrimonio Cultural de Hornillos". Considerando que los entierros humanos en su conjunto son parte de la historia y del patrimonio de los pueblos, el análisis bioarqueológico no debería circunscribirse al mero análisis de los restos óseos sino que tendría que contemplar e involucrar de alguna manera la participación de diferentes actores sociales, en este caso, las comunidades indígenas. Los restos óseos humanos han despertado siempre gran interés por parte de los diferentes actores sociales (arqueólogos, coleccionistas, comunidad en general). En este caso se pudo generar un espacio de reflexión sobre el destino de los restos óseos humanos en el que participaron aquellas personas interesadas en la temática. A partir de la consulta de las partes intervinientes se decidió que los restos óseos recuperados fueran primeramente analizados por los arqueólogos y bioarqueólogos, para luego ser enterrados nuevamente en el lugar de origen de acuerdo a las costumbres y creencias de las comunidades indígenas.Asociación de Antropología Biológica de la República Argentin

CP Violation in Supersymmetry with Effective Minimal Flavour Violation

We analyze CP violation in supersymmetry with Effective Minimal Flavour Violation, as recently proposed in arXiv:1011.0730. Unlike the case of standard Minimal Flavour Violation, we show that all the phases allowed by the flavour symmetry can be sizable without violating existing Electric Dipole Moment constraints, thus solving the SUSY CP problem. The EDMs at one and two loops are precisely analyzed as well as their correlations with the expected CP asymmetries in B physics.Comment: 22 pages, 7 figures. v2: Discussion in section 2 extended, conclusions unchanged. Matches published versio

Higgs-mediated FCNCs: Natural Flavour Conservation vs. Minimal Flavour Violation

We compare the effectiveness of two hypotheses, Natural Flavour Conservation (NFC) and Minimal Flavour Violation (MFV), in suppressing the strength of flavour-changing neutral-currents (FCNCs) in models with more than one Higgs doublet. We show that the MFV hypothesis, in its general formulation, is more stable in suppressing FCNCs than the hypothesis of NFC alone when quantum corrections are taken into account. The phenomenological implications of the two scenarios are discussed analysing meson-antimeson mixing observables and the rare decays B -> mu+ mu-. We demonstrate that, introducing flavour-blind CP phases, two-Higgs doublet models respecting the MFV hypothesis can accommodate a large CP-violating phase in Bs mixing, as hinted by CDF and D0 data and, without extra free parameters, soften significantly in a correlated manner the observed anomaly in the relation between epsilon_K and S_psi_K.Comment: 27 pages, 4 figures. v3: minor modifications (typos corrected and few refs. added), conclusions unchanged; journal versio

MFV Reductions of MSSM Parameter Space

The 100+ free parameters of the minimal supersymmetric standard model (MSSM) make it computationally difficult to compare systematically with data, motivating the study of specific parameter reductions such as the cMSSM and pMSSM. Here we instead study the reductions of parameter space implied by using minimal flavour violation (MFV) to organise the R-parity conserving MSSM, with a view towards systematically building in constraints on flavour-violating physics. Within this framework the space of parameters is reduced by expanding soft supersymmetry-breaking terms in powers of the Cabibbo angle, leading to a 24-, 30- or 42-parameter framework (which we call MSSM-24, MSSM-30, and MSSM-42 respectively), depending on the order kept in the expansion. We provide a Bayesian global fit to data of the MSSM-30 parameter set to show that this is manageable with current tools. We compare the MFV reductions to the 19-parameter pMSSM choice and show that the pMSSM is not contained as a subset. The MSSM-30 analysis favours a relatively lighter TeV-scale pseudoscalar Higgs boson and $\tan \beta \sim 10$ with multi-TeV sparticles.Comment: 2nd version, minor comments and references added, accepted for publication in JHE

CP violation in sbottom decays

We study CP asymmetries in two-body decays of bottom squarks into charginos and tops. These asymmetries probe the SUSY CP phases of the sbottom and the chargino sector in the Minimal Supersymmetric Standard Model. We identify the MSSM parameter space where the CP asymmetries are sizeable, and analyze the feasibility of their observation at the LHC. As a result, potentially detectable CP asymmetries in sbottom decays are found, which motivates further detailed experimental studies for probing the SUSY CP phases.Comment: 29 pages, 7 figure

The s ---> d gamma decay in and beyond the Standard Model

The New Physics sensitivity of the s ---> d gamma transition and its accessibility through hadronic processes are thoroughly investigated. Firstly, the Standard Model predictions for the direct CP-violating observables in radiative K decays are systematically improved. Besides, the magnetic contribution to epsilon prime is estimated and found subleading, even in the presence of New Physics, and a new strategy to resolve its electroweak versus QCD penguin fraction is identified. Secondly, the signatures of a series of New Physics scenarios, characterized as model-independently as possible in terms of their underlying dynamics, are investigated by combining the information from all the FCNC transitions in the s ---> d sector.Comment: 54 pages, 14 eps figure

The matter power spectrum in redshift space using effective field theory

The use of Eulerian 'standard perturbation theory' to describe mass assembly in the early universe has traditionally been limited to modes with k <= 0.1 h/Mpc at z=0. At larger k the SPT power spectrum deviates from measurements made using N-body simulations. Recently, there has been progress in extending the reach of perturbation theory to larger k using ideas borrowed from effective field theory. We revisit the computation of the redshift-space matter power spectrum within this framework, including for the first time for the full one-loop time dependence. We use a resummation scheme proposed by Vlah et al. to account for damping of the baryonic acoustic oscillations due to large-scale random motions and show that this has a significant effect on the multipole power spectra. We renormalize by comparison to a suite of custom N-body simulations matching the MultiDark MDR1 cosmology. At z=0 and for scales k <~ 0.4 h/Mpc we find that the EFT furnishes a description of the real-space power spectrum up to ~ 2%, for the ell=0 mode up to ~ 5% and for the ell = 2, 4 modes up to ~ 25%. We argue that, in the MDR1 cosmology, positivity of the ell = 0 mode gives a firm upper limit of k ~ 0.74 h/Mpc for the validity of the one-loop EFT prediction in redshift space using only the lowest-order counterterm. We show that replacing the one-loop growth factors by their Einstein-de Sitter counterparts is a good approximation for the ell = 0 mode, but can induce deviations as large as 2% for the ell = 2, 4 modes. An accompanying software bundle, distributed under open source licenses, includes Mathematica notebooks describing the calculation, together with parallel pipelines capable of computing both the necessary one-loop SPT integrals and the effective field theory counterterms